Year = 2009
Month = January
Day = 04
Day-of-year = 004
Site = Poker_Flat
Sunrise = 19:59
Sunset = 23:49
Moonrise = 20:06
Moonset = 11:03
Moon_age = 8
Aurora = Quiet - Arcs clearly visible, but mostly north of zenith
Cloud = Clear all night
Magnetometer = Disturbed
ASC = Short moondown, ran OK
Digital_ASC = Ran all night, good data
MSP = Ran all night on all channels
SDI = Ran all night, good data
Comments = A clear quiet night. The moon was around 50% illuminated and will start to affect SDI observations in coming days. But the SDI data still appear to be quite good for this night. There is some interesting horizontal divergence in the inferred wind fields after midnight, which needs further study before concluding that its real.
MC